Motorola NNTN7035A 200mAh Liion Intrinsically Safe Battery (Black) LiIon Intrinsically Safe battery Intrinsically safe batteries can be used in locations where flammable gas, vapors or combustible dust may be present. Compatible, APX 7000, APX7000XE, APX6000, APX6000XE . Data is stored in the battery and communicated to the charger via a unique IMPRES communication protocol which is designed to maximize talk-time and optimize battery cycle life